修改升级协议中的bug，未在下行数据中放入帧长度

liurunyu

2024-12-02 7fd3ff6715939467e3850763206d37fac8564e41

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="VcsDirectoryMappings">
    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
  </component>
</project>